{"id":"CVE-2026-105396","summary":"Heym before v0.0.112 HITL Review Token Leak via Spoofable Origin Header","details":"Heym before v0.0.112 contains a token leakage vulnerability in build_public_base_url() that allows unauthenticated attackers to redirect HITL review links by spoofing Origin or X-Forwarded-Host headers. Attackers can trigger anonymous workflows with forged headers so reviewer notifications point to attacker domains, capturing capability tokens to submit decisions executed with owner credentials.","aliases":["GHSA-6rv3-wh25-7pg5"],"modified":"2026-10-07T02:47:26.665067635Z","published":"2026-10-05T11:09:45.174Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-346"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105396.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105396.json"},{"type":"ADVISORY","url":"https://github.com/heymrun/heym/security/advisories/GHSA-6rv3-wh25-7pg5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105396"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/heym-before-0.0.112-hitl-review-token-leak-via-spoofable-origin-header"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/heymrun/heym","events":[{"introduced":"0"},{"fixed":"20279736e7c34c7ca3e8bae36184f31a1c64795a"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.0.112"},{"fixed":"v0.0.112"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v0.0.111","v0.0.110","v0.0.109","v0.0.108","v0.0.107","v0.0.106","v0.0.105","v0.0.104","v0.0.103","v0.0.102","v0.0.101","v0.0.100","v0.0.99","v0.0.98","v0.0.97","v0.0.96","v0.0.95","v0.0.94","v0.0.93","v0.0.92","v0.0.91","v0.0.90","v0.0.89","v0.0.88","v0.0.87","v0.0.86","v0.0.85","v0.0.84","v0.0.83","v0.0.82","v0.0.81","v0.0.79","v0.0.80","v0.0.78","v0.0.77","v0.0.76","v0.0.75","v0.0.74","0.0.73","v0.0.72","opencode-pr-assets","0.0.71","codex-pr-assets","0.0.70","v0.0.69","v0.0.68","v0.0.67","v0.0.66","v0.0.65","v0.0.64","v0.0.63","v0.0.62","v0.0.61","v0.0.60","v0.0.59","v0.0.58","v0.0.57","v0.0.56","v0.0.55","v0.0.54","v0.0.53","v0.0.52","v0.0.51","v0.0.50","v.0.0.49","v0.0.48","v0.0.47","v0.0.46","v0.0.45","v0.0.44","v0.0.43","v0.0.42","v0.0.41","v0.0.40","v0.0.39","v0.0.38","v0.0.37","v0.0.36","v0.0.35","v0.0.34","v0.0.33","v0.0.32","v0.0.31","v0.0.30","v0.0.29","v0.0.27","v0.0.26","v0.0.25","v0.0.24","v0.0.23","v0.0.22","v0.0.21","v0.0.20","v0.0.19","v0.0.18","v0.0.17","v0.0.16","v0.0.15","v0.0.14","v0.0.13","v0.0.12","v0.0.11","v0.0.10","v0.0.9","v0.0.8","v0.0.7","v0.0.6","v0.0.5","v0.0.4","v0.0.3","v0.0.2","v0.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105396.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}